You can now navigate to your PDF roster from Webbrowser, Dropbox, Google Drive or Email client. If you have the PDF document open on your device.
On iOS please follow these steps:
Open your roster and click for more options on the icon and look for: Copy to RosterBuster.
This will start the upload process and the RosterBuster app opens and shows your flight map.
On Android please follow these steps:
Open your PDF roster on your device tap on the three vertical dots (options) and click on Send file... and click on RosterBuster. Then the upload process will start and the RosterBuster app opens and shows your flight map.